Grain separator



C. W. CARTER.

GRAIN SEPARATOR.

APPLICATION FILED MAR.30, 1921.

1,437,042. Patented v 28, 1922.

. 3 SHEETSSHEET 1- C. W. CARTER.

GRAIN SEPARATOR.

APPLICATION'FILED MAR. 30. 1921.

Z 92 n r: 00H 4 mm W ds m m w mm Q (Q m C. W. CARTER.

GRAIN SEPARATOR. APPLICATION FILED MAKSU, 1921.

1 ,437,042. Patented N v. 28, 1922.

I 0&0

ffifymsfltiorneys Patented Nov. 28, 19224 PATENT OFFICE.

umrao STATES CLARENCE W. CARTER, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR TO CARTER MAYHEW MANUFACTURING COMPANY, OF MINNEAPOLIS, MINNESOTA, A

CORPORATION OF MINNESOTA.

GRAIN SEPARATOR.

Application filed March 30, 1921.

To all whom it may concern: Be it known that I, CLARENCE W. CARTER, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful Improvements in Grain Separators; and I do hereby declare [the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates particularly to grain separators and is designed as an improvement on or modification of the grain separator disclosed and broadly claimed in my prior Patent #1,364,247, of date January 4, 1921.

In'the accompanying drawings, which illustrate the invention, like characters indicate like parts throughout the severalviews.

Referring to the drawings:

Fig. 1 is a side elevation with some parts broken away and some parts sectioned, showing the complete separator;

Fig. 2 is a fragmentary horizontal section taken on the line 22 of Fig. 4;

Fig. 3 is a fragmentary view partly in plan and partly in horizontal section, taken on the line 33 of Fig. 5;

Fig. 4 is an elevation with some parts broken away, showing the discharge end of the separator; A

Fig. 5 is a view partly in elevation'but chiefly in transverse vertical section on the line 5-5 of Fig. 1;

F ig. 6 is a face elevation showing a fragment of one of the separating disks;

Fig. 7 is an enlarged fragmentary section taken on the line 77 of Fig. 5.

Fig. 8 is a side elevation with some parts broken away illustrating a modified form of the separator; and i Figs. 9, 10 and 11 are fragmentary views in elevation illustrating the different sizes of pockets in different groups of disks used in the arrangement illustrated in Fig. 7.

This separator is capable of use for separating various different kinds of materials which have different form, but will be described as if designed and used for the sep aration of wheat from oats, which grains, when commingled or mixed together or with other seeds, are frequently designed as succotash,

Serial No. 456,840.

As a container for the succotash or commingled grain, I provide a horizontally disposed drum-like casing 8, which may be conveniently supported by legs 9. At or near its receiving end, the casing 8 is provided with an inlet or supply hopper 10 shown as provided in its bottom with a pluralit of independently movable gates 11 for regu ating the delivery of grain to the inlongitudinally extended outwardly offset socalled collecting hopper 15 that opens into the expanded upper portionof a depending spout 16.

Just above the hopper 15, the casing 8. as shown, is provided with a normally closed hinged gate 17, and just below the supply hopper 10, said casing is shown as provided with a similar normally closed pivoted gate 18.

Mounted in suitable hearings on the heads of the casing 8 and extended axially therethrough is a horizontal shaft 19, which, at one end, is shown as provided with a pulley 20 and, at its other end, with a sprocket 21. both located outside of the casing, but the latter being enclosed in a housing 22 applied to the casing. I

i The shaft 19 carries a multiplicity of separating disks or plate-like separating surfaces that are preferably formed with pockets such as herein illustrated and more fully shown in my prior patent above identified. However, so far as certain of the features and combinations herein claimed are concerned, the separating surfaces of the disks or plates may take various forms and might be of any form or construction that would receive certain kinds of grain or material and reject other kinds of grain or material.

As shown in the drawin s, these separating disks 23 are of annular orm and are connected to the shaft 19 by radial spokes or arms 24. These spokes or arms 24, as an important feature of this invent-ion are made in the from of obliquely set flat arms that operate as propelling blades to feed the comniingled grain progressively through the substantially axial passages of the disks in a direction from the receiving toward the delivery end of the casing. This matter is highly important and will be later further considere I Extended longitudinally through the collecting hopper 15, but spaced from the outer wall thereof to leave an unobstructed grain passage 25, is a tailing spout 26 in which works a feed screw orlspiral'conveyor 27. The shaft of the feed screw 27 projects into the housing 22 at the delivery end of the casing and is there provided with a sprocket 28 over which and the sprocket 21 runs a sprocket chain 29, so that saidfeed screw will be driven from the shaft 19.

The numeral 30'indicates a flanged metal bar that extends above the feed screw 27 and, at its ends, is rigidly secured to the ends of the casing 8. The numeral 31 indicates small flanged collectin spouts that are rigidly supported by the laar 30 and work between the pocketed faces of the disks 23.

The numeral 32 indicates a multiplicity of small spout cover sections shown as pivotally connected to the outer edge of the spout 17 and normally ravity-held on one flange of the bar 30, asindicated by full lines in Fig. -5. At the receiving end of the casing, the iimer side flange-of the tailing spout 26 is cut away at 26, see Fig. 1, to permit a free discharge of the tailings back into the easmg. I j As already indicated, the pockets 23, formed, in both faces of the disks 23, are preferably of a character more fully disclosed in my prior patent, but by reference to'Figs, -6 and 7, it will be noted that these sections turned down, it is foundlthat some pockets are approximately rectangular-and are slightly undercut in a backward direction and at their under portions, so that 1 -wheat kernels or the like, entering the same,

discharged. In

will be carried uite high up before being igs. 1 and 5, succotash or commingled grain within the casing is indicated by the character y.

When the machine is in operation, the disks will be rotated in a clockwise direction in respect to Fig. 5, Approximately the proper amount of rain to be kept in the container or casing 8 is indicated in Fig. and the supply may, of course, be regulated by opening more or less of the gates 11. Under rotation of the disks, the body of grain will be caused to drift toward the left in respect to Fig. 5. As the disks move upward through the body of grain. their pockets will be filled with wheat, while the oats will be rejected, but some of the oats will be carried upward by t-he pockets and quickly dropped, while the wheat will be carried over and tl \vn iillo the collecting spouts 31 and from? lhen e will be delivered over the downturned sections 32 of the tailing spouts 26 and thence into the receiving spout 16. The speed-of rotation of the separating disks will be such that centrifugal force will assist in throwing the wheat from the pockets over onto or into the collecting spouts 31.

Under the above separating action, the oats rejected by or quickly discharged from the pockets of the disks will be dropped back on the top of the body of grain 3 so that that portion of the stock 1 which is aligned with the large approximately axial openings in the disks will contain the greatest amount of oats, and it is this portion of the stock'that will be engaged by the oblique blades or arms 24 and will be progressively fed through the disks in a direction from the receiving toward the delivery end of the easing. Obviously, this manner of feedin the stock is important because that portion 1; ereof in which oats predominate should be more rapidly advanced toward the discharge end of the casing, than should that portion that'contains a'larger percentage of wheat and a smaller percentage of oats. The feedingofthe stock through the disks, as described, makes this feeding action feasible...

oats are being carried over with the wheat, certain of said cover sections, at or near the delivery end ofthe casing, may be turned up as shown by dotted lines in Fig. 5, thereby opening up a portion of the tailing spout 26 so that all of the carried-over oats with some wheat will be delivered into said tailing spout and, by the feed screw 27. will be delivered back into the receiving end of the easing and again subjected to the separating actions of the disks. Thus, clean separation can be made by properly opening the tailing spout, as above described.

' l sing the propelling blades as spokes or armsto carry the disks from the axial shaft affords a simple and most efficient construction, but the propelling means. or means for causing the graiin to progressively move through the openings in the disks. may take many other forms and I desire to here claim the same from the broadest possible point ol' view in this respect and. moreover, do not herein limit myself to any particular form of separating pockets on the disks and.

1 ill) hence, herein use the statement that said disks are formed with separating surfaces to include any kind of separating surfaces capable of receiving certain kinds of materials and rejecting other kinds of materials.

The pockets or separating surfaces of the disks may, of course, be varied in size and form so as to not only separate wheat from cats but to separate various other seeds, grains or materials.

In Figs. 8 to 11, inclusive, the separator there illustrated is of the same generalcharactor as that above described, but involves a novel arrangement or group of disks having separating surfaces in different groups arranged to perform somewhat different kinds of separation. Here, as shown, the

casing 8 is provided with a plurality, as

' hopper 15, open from one side of the casing.

shown three, longitudinally spaced collecting hoppers 8, 8" and 8, which, like the Here also, the disks are correspondingly arranged in three groups a, b and c, the disks of said three groups having separating surfaces that differ in character, as between the disks of the several groups. For example, in the arrangement shown, the disks of group a are small the disks of group b are larger and the dlsks of group 0 are still lar'ger, so that the pockets of the disks in group a will not pick up wheat or large seeds but only small seeds; the pockets of the disks in group -b are not large enough to pick up wheat, but will pick up quite large seeds; and the pockets of the disks in group 0 will pick up wheat but will not pick up oats or barley. Hence, with this arrangement, small seeds will be delivered into the hopper, 8, large seeds and broken wheat, for example, will'be delivered into the hopper 8", good wheat will be delivered into the hopper 8 and the oats and barley will be discharged from the spout 13.

What I claim is:

1. The combination with a container for material to be separated, of a plurality of disks rotatable within said container, said disks having feed passages permitting the material to be,,fed therethrough and, outward thereof, having separating surfaces, and means for progressively feeding the material through the feed passages of said disks.v I

2. The combination with a container having-an inlet near one end and an outlet near its other end, of a plurality of separating disks rotatably "mounted within said casing, said disks having feed passages permitting the material to be fed therethrough and, outward thereof, having separating surfaces, and means. rotatable with said disks for progressively feeding the material through the feed passages of said disks, in a direction from said inlet toward said outlet.

3, The combination with a container for material to be separated, of a rotary shaft material to be separated, of a. plurality of disks rotatable within said container, said extended. through said container, a plurality of annular disks having separating surfaces, and oblique propeller-acting arms connecting the same to said shaft and operative to progressively feed the material through the openings in said disks.

5. The combination with a container for material to be separated, of a plurality of disks rotatable within said container, said disks having feed passages permitting the material to be fed therethrough and, outward thereof, having separating surfaces, means for progressively feeding the material through the feed passages of said disks, and means located between said disks for receiving the material raised by and discharged from the separating surfaces of said disks.

6 The combination with a container for material to be separated, of a plurality of disks rotatable within said container, said disks having feed passages permitting the material to be fed therethrough and, outward thereof, having separating surfaces,

and means for progressively feeding the material through the feed passages of said disks. said container, at one side, having a collecting hopper or chamber for receiving the selected material {raised by and discharged from said disks.

7. The combination with a container for material to be separated, of a plurality of disks rotatable within said container, said disks having feed passages permitting the material to be fed therethrough and, outward thereof, having separating surfaces, means for progressively feeding the selected material through the feed passages of said disks, said containenat one side, having a collecting hopper or chamber for receiving the material raised by and discharged from 11 said disks, and collecting spouts located between said disks for directing the selected material from said disks into said collecting hopper. V

8. The combination with a container for material to be separated, of a plurality of disks rotatable within said container, said disks having feed passages therein permitting the material to be fed therethrough and, outward thereof, having separating surfaces, oblique propeller blades forming disk-supporting arms located within the feed passages thereof, said container, at one side, having a. collecting hopper or chamber, and collecting spouts located between said disks for directing the selected material therefrom into said collecting hopper.

9. In a separator of the kind described, the combination with a container, of an annular rotary disk havingoblique propelleracting supporting arms located in the axial opening thereof.

10. In a separator of the kind described, the combination with a casing and an approximately horizontal rotary shaft therein, of oblique propeller-acting arms radiating from said shaft, and an annular separating disk carried by said arms, said disk having separating surfaces on both surfaces thereof. 1 l1. The combination with a container for material to be separated, of a plurality of separating disks rotatable within said container, said disks having surfaces adapted to receive certain kinds of material and to reject other kinds of material, means for progressively feeding the material through said casing, and a tailing device adapted to receive the imperfectly separated materials carried by said disks and to return the same to the main bodyof stock in said container.

12. The comblnation with a container for material to be separated, of a plurality of separating disksrota-tab-le within said container, said disks having surfaces adapted to receive certain kinds of material and to reject other kinds of material, means for progressively feeding the material through said casing, and a tailingdevice adapted to receive the imperfectly separated materials carried by said disks and to return the same to the main body of stock in said container, said tailing device comprising a trough and a conveyor therein and said trough having a sectional cover, the sections of which, when turned 1nto one position, carry the selected stock over said trough to a point of discharge and which sections, when raised, direct the material into said trough.

13. The con'lbination with a container for material to be separated, of a plurality of disks rotatable within said container, said disks having feed passages permitting the material to be passed therethrough and, outward t-hereof,= having separating surfaces, means for progressively feeding the material through the feed passages of said disks, a tailing trough extended within said casing along one edge of said disks, a conveyor working in said trough, said trough having a sectional cover, and collecting spouts located between said disks and co-operating with. downturned trough cover sections to deliver the selected material out of said caslng.

14. The combination with a container for material to be separated, of a pluralityof disks rotatable within said container, said disks having feed passages permitting the material to be passed therethrough and, outward thereof, having separating surfaces, means for progressively feeding the material through the feed passages of said disks, said container, at one side, having a collecting hopper or chamber for receiving the material raised by and discharged from said disks, a tailing trough Within said collecting hopper, a conveyor in said trough for returning the tailings to the main body of stock within said container, and a sectional cover for said trough, the sections of which, when turned downward, direct the selected stock out of said container.

15. The combination with a container for material to be separated, of a plurality of disks rotatable within said container, said disks having feed passages permitting the material to be passed therethrough and, outward thereof, having separating surfaces, means for progressively feeding the material through the feed passages of said disks, said container, at one side, having a collectiing hopper or chamber for receiving the material raised by and discharged from said disks, a tailing trough within said collecting hopper, a conveyor in said trough for returning the tailings to the'main body of stock within said container, a sectional cover for said trough, the sections of which, when turned downward, direct the selected stock out of saidcontainer, and collecting spouts located between said disks for directing the selected material onto the downturned sections of said trough cover.

.16. The combination with a container for material to be, separated, of a plurality of disks rotatable within said container on an approximately horizontal axis, said disks having feed passages permitting the mate rial to be fed therethrough and, outward thereof, having separating surfaces, and means for progressively feeding the material through the feed passages of said disks.

17. The combination with a container for material to be separated, of a plurality of disks rotatable within said container on an approximately horizontal axis, said disks having feed passages therein permitting the material to be fed therethrough and, outward thereof, having separating surfaces, and oblique propeller blades forming disksupporting arms located Within the feed passages thereof.

18. The combination with a container for material to be separated, of, an approximately horizontal rotary shaft extended through said container, a plurality of annu-' lar disks having separating surfaces, and oblique propeller-acting arms connecting the same tosaid shaft and operative toprogressively feed the material ings in said disks.

'19. The combination with a container for material to be separated, of a plurality of disks rotatable within said container, said through the open-' disks rotatable within said container, said disks having separating surfaces adapted to pick up certain kinds of material and to reject other .kinds of material, said disks being arranged in groups and the groups having separating surfaces operative to. pick up different grades or kinds of material, and means for progressively subjecting the material to be separated, to said disks, said disks being rotatable on approximately horizontal axes and the separating surfaces of said disks being formed by pockets.

21. The combination with a container for material to be separated, of a plurality of disks rotatable within said container, said disks having feed passages permitting the material to be fed therethrough and, outward thereof, having separating surfaces, and means for progressively feeding the material through the feed passages of said disks, said disks being arranged in groups and the separating surfaces of disks of the different groups being arranged to pick up different grades or kinds of material.

22. A grain separator comprising a container for the grain to be separated, a shaft extending the'rethrough, an inlet and outlet formed' at opposite ends of said container, a plurality of disks on said shaft, said disks beingprovided with a plurality of recesses or pockets in their opposite faces, said disks being provided with a plurality of radially disposed slots, whereby the grain will be progressively advanced from the inlet toward the outlet, substantially as described.

23. A grain separator comprising a container for the grain to be separated, a

revolubly mounted shaft extending therethrough, said container having an inlet and an outlet at opposite ends thereof, a plurality of disks carried by-said shaft, said disks being provided with a plurality of recesses or pockets in their opposite faces, the disks adjacent the inlet end of the container being provided with smaller pockets than those adjacent the outlet-chute, each of said disks being provided with a plurality of radially disposed slots, whereby the grain will be progressively advanced from the inlet end to the outlet.

24. A grain separator comprising a container for the grain to be separated, a shaft extending therthrough, a plurality of disks carried by said shaft, said disks being provided witha plurality of pockets in their opposite faces, said disks also being provided with radially disposed slots for progressively advancing the grain from the inlet end to the outlet, and the disks adj acent the inlet end being provided with smaller pockets than those adjacent the outlet end, substantially as described.

In testimony whereof I affix my signature.

CLARENCE W. CARTER. 

